and it begins to discolor and distort your very economy. sadly enough, that's where we're headed. >> do you all agree that the extremes on both parties, the right and left, are actually the ones who run the congress right now? start with you, senator. >> there's quite a bit of extremism. i don't need to tell you that, joe. there's very few of us left in the middle. the so-called middle, if you will, has been sh ink aring, shrinking and shrinking. let's talk about follow the money. a lot of the people are on the far left or far right of the extremes of both ends. that's where people get all excited, get involved. either directly or their resources, their money behind in what they believe in. sometimes it draws them further apart. tom brokaw basically says that 75% of all of our congressional districts are bulletproof. so if you're there, and you've already established yourself, whether you're on the right or left, you're pretty well solid. so you only have to play to a certain core. and that's not healthy. and so a lot of changes need to be